Dump-wagon.



No. 802,769. PATENTBD 00T. 24, 1905. o. E. MOATS. DUMP WAGON.

APPLICATION FILED NOV. 1,1904.

W//Allllllllilllil jlb-SHEET l.

No. 802,769. PATENTED UGT. 24, 1905. O. E. MDATS.

DUMP WAGON.

APPLICATION FILED NOV. l, 19011.

3 SHEETS-SHEET 2.

No. 802,769. PATENTED OCT. 24, 1905. 0. E. MOATS.

DUMP WAGON.

APPLIUATION FILED Inn/21.1904.y

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i STATES PATENT OFFIC.

ORTUS E. MOATS, OF HARVEY, ILLINOIS, ASSIGNOR TO NATIONAL DRILL t MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPO- RATION OF WEST VIRGINIA.

Specification of Letters Patent.

Patented Oct. 24:, 1905.

Application filed November l, 1904. Serial No. 230,960.

To (LZZ whom, it muy concern;

Be it known that I, OR'rUs E. MoA'rs, a citizen of the United States, residing at Harvey, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in 'Dump-VVagons, ot' which the following is a specification.

My invention relates more particularly to dumping-wagons in which the bottom doors are hinged at their outer' edges and closed after the dumping action by cables attached to theinner edges of the doors and from thence respectively extended to opposite sides of the body, the general arrangement being such that after the dump and during the latter portion or' the closing action of the bottom doors the cable portions between the bottom doors diverge outwardly from the inner edges of the bottom doors, and hence, as such portions are shortened by the action of ordinary or suitable winding means, the drawing action oi the cables on the bottom doors will swing the doors upwardly and also tend to spread or draw them laterally outward against the hinges. I/Vhen the bottom doors are closed and the box is loaded, the weight of the load will tend to spread the doors apart and force them against their hinges to an extent to leave an objectionable space between the doors and either bend or rupture the hinges, this objectionable spread being increased by use and wear.

Objects of my invention are to prevent such abnormal spread or shifting apart of the bottom doors` particularly when closed; to hold the doors with their inner edges closely together when they are closed and the body is loaded; to automatically lock the bottom doors against spread when closed, and to automatically unlock them when the operating chains or cables are allowed to pay out.

Figure l is a longitudinal section on a vertical central plane through the major portion oi a dumping-wagon embodying the principles of my invention, the bottom doors being' understood to be closed and the winding device for the door-operating chain being omitted for convenience of illustration. The plane ot' this section is indicated by line .fr fr in Fig. 2. Fig. 2 is a transverse section on line jf/ l/ in l and further illustrates the hinged bottom doors in hanging position. In this iigure a portion of one of the end walls l is broken away in order to expose a locking device at one end of the wagon-body. Figs. 3, 1I, and 6 are details showing portions of the wagon-body in section and illustrating other 'forms oi' locking devices which I may use and which embody principles of my invention. Ot' said last ligures, Fig. 3 is a longitudinal section on line 'w fw in Fig. 1I. Fig. 4 is a cross-section on a plane through Fig. 3 at one side of the chains. Fig. 5 is a section on line s s in Fig. 6. Fig. 6 is a cross-section on a plane through Fig. 5 at one side of the chains.

In the construction of dumping-wagon to which my invention is shown applied the bottom doors A are provided with hinges having eyes B bent upwardly from the planes of the doors and arranged to engage the lower inwardly-bent portions of the guide and pintle rods C, as best shown in Fig. Q.. The operating-chains I) are attached to the inner edges ot' the bottom doors and extend therefrom upwardly and outwardly, so as to respectively pass through openings in opposite sides of the box or body E of the wagon. The portions of the chains thus carried outside the body are extended forward to a winding device of any suitable character adapted for winding up the chains or cables .D and also for releasing them, so as to permit them to pay out during the dumping action.

Thus far described the dumping-wagon is similar to that shown and described in Letters Patent of the United States to Henry S. Hoy, No. 736,260, August 11, 1903, and the dumping-wagon herein illustrated may operate in the different ways in which the dumpingwagon in said patent is intended to be and is in practice operated. I do not, however, strictly confine m yself to said Ho y wagon, observing', however, that as said wagon has hinge devices for the bottom doors outside the body and operating-chains which div erge outwardly and upwardy from the inner edges of the bottom doors when the latter are closed, as in Fig. 2, my invention as applied to such wagon materially improves the same, and, in fact, supplies a want which has been greatly needed in the operation of such wagons.

In Figs, 1 and 2 locking-bearings are secured to opposite ends of the wagon-body in position to engage stops or bearings on the ends of the bottom doors. As a strong and IOO simple way ot' providing bearings on the body of the wagon I form two segmental plates F and bolt or otherwise suitably secure one ot' these plates to the forward end Gr of the wagon-body and in like manner secure the v other segmental plate to the rear end H ot' the wagon-body, said end I-I being shown broken away in Fig'. 2, so as to expose the segmental plate, which is shown secured to said end oi' the wagon-body in Fig. l. This plate resembles an invertedU-shaped structure, and preferably the inner edges 1 l of its end portions are beveled or sloped, so as to diverge downwardly and outwardly, and thereby form inclines or cam-surfaces. The opposite inner edge portions of the segmen tal plate just above these inclined edge portions l are spaced so as to form bearings which will snug'l y engage studs or bearings 2 2 on the ends of the bottom doors when the bottom doors are fully closed, as in Fig. 2, it being' understood that the same arrangement or' segmental plate and stud or bearings 2 is observed at the opposite end of the wagonbody.

In Fig. 2 the chains D are understood to be payed out so that the bottom doors will hinge, as indicated in dotted lines. If now the bottom doors thus shown in dotted lines are swung upwardly by winding' up the chains, the concluding or terminal of such action will bring the studs or stops 2 2 between the downwardly-projecting arms of the segmental plate, and by reason of the bevels or caminclines l the studs or stops 2 will engage such inclines even where the chains have shifted the bottom doors transversely outward, and as the chains continue to wind up and thereby shorten between the inner edges of the bottom doors and the opposite sides of the wagon-body the final or terminal rising of the action of the inner edge portions of the bottom doors will cause the stops 2 to ride up along the inclines l. which latter will force the inner opposing edges of the bottom doors together, in which position they will be held by the portions of the inner edge of the segment-plate, which they will ultimately engage, as shown in Fig. 2. lVhenthc bottom doors are thus closed, the winding device for the chains D will of course be locked, as usual, so that the chains cannot pay out until it is desired to dump another load, which can be accomplished after loading the wagon by merely unlocking the winding device, so as to allow the chains to automatically pay out; but as long as chains D are looked by the winding device or by any other suitable or desired means the bottom doors closed, as in Fig. 2. with their stops 2 engaged and embraced by locking-bearings formed on the wagon-body by the segment-plates cannot shift apart. It is understood that all of the actions described in connection with Fig. 2 apply to the locking means at the opposite end of the wagon, it being' desirable to duplicate these locking devices, so that the bottom doors cannot spread under a load at either end.

It is obvious that each segment-plate F could be divided into two plates without departing from the principle of the invention illustrated.

. It is also evident, however, that plates made substantially as the plates F are exceedingly strong and simple and that each plate forms a rigid connection between two locking-bearing portions spaced to receive and straddle a pair of bearings, such as stops 2 2, respectively, on the one and the other of the bottom doors adjacent to the inner edges of the latter.

In Figs. 3 and 4: each bottom door is provided at one end with a stop 3 adjacent to its inner edge. By such arrangement when the bottom doors are closed, as in Figs. 3 and 4, the divided bottom of the wagon will have at each end a pair of stops 3 3, which come together, as in Fig. et, and in order to interlock these stops with the wagon the end-boards G and H oi' the wagon-body are provided with notches, each adapted to receive a pair of said stops when the bottom doors are closed. As illustrated, the end G of the wagon-body has a recess adapt-- ed to receive a pair of said stops, andthe end H ot' such wagon-body is likewise provided with a notch or recess 6, adapted to receive a light pair of stops when the bottom doors are closed. Asimilar arrangement is shown in Figs. 5 and 6, the difference being that when the bottom doors are closed their longitudinal outer edges are within the body oi' the wagon and do not lie under the longitudinal sides I, as in preceding figures. As a 'Further slight ditl'erence in Figs. 5 and 6, the stops '7 7 project horizontally from the end of the bottom doors and engage in notches in the ends of the wagonbody when the bottom doors are closed, it being observed that, as in Figs. 3 and LL, however, each notch receives a pair ot' stops. Figs. 8 to 6 therefore show various ways in which the bottom boards can be locked and held against horizontal shift when closed and subject to a load, and they also show that the bottom boards can be locked and unlocked without manually operating any catch or bolt device. In all of the iigures. however, the longitudinal divided bottom has at each end a pair of stops, respectively, on one and the other of the sections or doors formed by the divided bottom, so that when the two bottom sections or doors are closed each pair ot' stops is embraced between two locking-bearings; also, that the stops are adjacent to the longitudinal line of division between the inner edges of the doors or bottom sections when the latter are closed, and that the locking-bearings which engage these stops are also comparatively near the middle longitudinal line of the wagon-body. As a matter of course the two stops of each pair could be spread to a greater extent than shown, and the bear- IOO scarce ings could be arranged accordingly without departing from the principles of my invention.

In the wagon illustrated in Figs. 1 and 2 the hinges are outside of the wagon box or body, and the doors are under the lower side edges of the sides of the boxer body when the doors are closed, as in Fig. 1, and it would be obvious, therefore, that the tendency of the doors to shift apart in a horizontal plane when they are closed, as in Fig. 2, and thereby tend to bring the hinge devices outwardly, will be successfully opposed by my simple arrangement of stops or bearing-faces on the doors engaging what may be termed the inner faces of bearings on the wagon-body. In addition to this matter of improvement the locking-bearings in Figs. 1 and 2 involve matters of further improvement, hereinbefore mentioned, it being seen that the bearing-faces 1 1 permit the stops 2 to readily rise into position when the hinge members are not worn or sprung and also permit such stops to rise into position to engage the vertical bearing-faces next above the inclines 1, and also that if the hinge devices are warped or sprung so as to allow the doors to bodily sag outwardly while being swung up by the cables I) the said inclines 1 1 when engaged by the upwardlymoving stop-bearings 2 2 will necessarily draw the inner edges of the doors together, and thereby permit such stop-bearings to move Vup against the vertical bearing portions next above the inclined bearing portions 1 1.

I do not strictly coniine myself to all of the particular details of the dumping-wagon shown in said Hoy patent. The form of hinges may be varied, and the chains or cables D, which are frequently termed the windlasschains,7 may be in two pairs, respectively, at opposite ends of the box or body, as in the prior art.

What I claim as my invention is 1. In a dumping-wagon, a pair of bottom doors hinged at their outer edge portions, and having their end portions provided with stops, and bearings on the wagon-body with which the stops on the doors engage when the doors are closed, said bearings being arranged to oppose tendency of the closed bottom doors to shift apart.

2. In a dumping-wagon, a pair of bottom doors hinged at their outer longitudinal edge portions; operating chains or cables connected with the inner longitudinal edge portions of the doors and diverging outwardly therefrom; stops on the end portions of the doors; and bearings at each end of the body arraiiged in pairs, each pair of bearings being arranged to embrace at each end of the wagon a couple of stops respectively on the two doors when the latter` are closed, to prevent said doors from shifting apart.

3. In a dumping-wagon, a pair of bottom boards having their outer longitudinal edge portions hinged outside the wagon-body; operating chains or cables for raising the doors diverging outwardly when the doors are closed; stops on the doors, and bearings on the body which engage said stops when the doors are closed and which hold the closed doors against relative speed.

4L. In a dumping-wagon, bottom boards hinged at their longitudinal outer edges; operating chains or cables for swinging the doors upwardly to bring them into a closed horizontal position and for permitting said doors to swing downwardly and outwardly when said cables pay out, stops on the doors and bearings on the wagon-body, said bearings being in position to be engaged by the doors when the latter are brought into closed position and being arranged to engage said stops in opposition to tendency on the part of the doors to shift horizontally apart when in closed position.

5. In a dumping-wagon, bottom doors arranged at their outer edge portions, stops on the doors arranged in pairs and bearings arranged to engage the stops when the doors are closed, said bearings having inclines for engaging the stops prior to the terminal. closure of the doors and having bearing-faces extending upwardly from said inclines and engaging the stops when the doors are closed.

6. In a dumping-wagon having bottom doors hinged at their outer edge portions and chains or cables for operating the doors; stops arranged in pairs on the end portions of the doors and recessed bearing-plates each arranged to receive a pair of said stops when the doors are closed.

7. In a dumping-wagon having bottom doors hinged to swing downwardly and outwardly and raising and lowering chains con necting with the bottom doors at opposite sides of the middle longitudinal center of the wagon-body; bearing-plates on the wagonbody and stops on the ends of the doors, each bearing-plate being adapted to straddle and engage a pair of such stops at an end of the wlagon-body when the bottom doors are c ,ose

OR'IUS E. MOATS.

l/Vitnesses:

OTTILIE C. FREIBERG, (l1-mares G. Plien.

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